Why do I have to login again? Do you have DEBUG off on the production server this time? I was weary giving my credentials the first time, still am.
Is the spreadsheet editor still just an web view? Yep, looks like it is. That's my biggest hinderance here, it's so much easier to edit spreadsheets in Chrome because I can do things like edit the page without having to find the mysterious icon for it on the top right.
I haven't tried editing any other filetypes, so I don't know if you have any actual integrated editor that isn't just using Docs in a web view, but I think that's really a much more important aspect of a program like this for myself rather than it being able to login to all of my random accounts.